Part # LM2788 datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: LM2788 120mA High Efficiency Step-Down Switched Capacitor Voltage Converter


Part Details:

LM2788 October 2002 120mA LM2788120mA High Efficiency Step-Down Switched CapacitorVoltage Converter High General Description Features The LM2788 switched capacitor step-down DC/DC con- n Output voltage options: Efficiency verter efficiently produces a 120mA regulated low-voltage 2.0V ± 5%, 1.8V ± 5%, 1.5V ± 6% rail from a 2.6V to 5.5V input. Fixed output voltage options of n 120mA output current capability 1.5V, 1.8V, and 2.0V are available. The LM2788 uses mul- n Multi-Gain and Gain Hopping for Highest Possible tiple fractional gain configurations to maximize conversion Efficiency - up to 90% Efficient efficiency over the entire input voltage and output current n 2.6V to 5.5V input range ranges. Also contributing to high overall efficiency is the n Low operating supply current: 32µA extremely low supply current of the LM2788: 32µA operating n Shutdown supply current: 0.1µA Step-Down unloaded and 0.1µA in shutdown. n Thermal and short circuit protection The optimal external component requirements of the n Available in an 8-Pin MSOP Package LM2788 solution minimize size and cost, making the partideal for Li-Ion and other battery powered designs. Two 1µFflying capacitors and two 10µF bypass capacitors are all that Applications are required, and no inductors are needed. n Cellular Phones The LM2788 also features noise-reducing soft-start circuitry, n Pagers short-circuit protection and over-temperature protection. n H/PC and P/PC Devices Switched n Portable Electronic Equipment n Handheld Instrumentation Typical Application Circuit Capacitor Voltage Converter 20044401 © 2002 National Semiconductor Corporation DS200444 www.national.com Connection Diagram LM2788 LM2788 Mini SO-8 (MSOP-8) Package NS Package #: MUA08A 20044402


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LM2788.pdf Datasheet